Liber CLXI: Concerning the Law of Thelema: “An epistle written to Professor L.B.K. who also himself waited for the New Aeon, concerning the O.T.O. and it’s solution of Property, and now reprinted for the General Circulation.”

Liber CCC: Khabs am Pekht: “A special instruction for the Promulgation of the Law. This is the first and most important duty of every aspirant of whatever grade. It builds up in him the character and Karma which forms the Spine of Attainment.”

Revised O.T.O. Constitution of 1917 by Fr. Merlin (Theodor Reuss): “This historical document was written by Theodor Reuss, the first Outer Head of the Order, which was largely based on the MMM Constitution written in 1913 by Aleister Crowley.”